BIRMINGHAM, Alabama -- The University of Alabama reported $143.4 million in athletic revenue during 2012-13, up 16 percent from a year earlier. It's Alabama largest revenue increase in three years.

In its annual Equity in Athletics Data Analysis report filed this month to the U.S. Department of Education, Alabama listed a surplus of $21.1 million when not factoring in $13.1 million from debt-service payments. EADA does not require debt service to be reported.

Alabama's revenue has increased by 43 percent since 2009, when it won the first of three football national championships under Nick Saban. Revenue is up 112 percent since 2006, Alabama's last year with Mike Shula as coach. Alabama has since expanded its football stadium and reaped the benefits of new SEC television deals.

In 2012-13, Alabama listed spending $18.5 million on coaches' salaries and $11.1 million on athletically related student aid -- a difference of $7.4 million. That gap was $6.6 million in Alabama's 2011-12 EADA report.

The NCAA has been unsuccessful trying to adopt a stipend that would allow universities to cover athletes' full cost of attendance. For instance, Alabama calculated in 2011-12 that for an out-of-state student the average full grant-in-aid cost $33,811, but the actual cost of attending the university was $38,979.

Alabama reported that 52 percent of its athletically related student aid went to men's teams and 48 percent to women's teams.

Financial numbers reported in EADA reports are not as comprehensive as the annual reports schools provide to the NCAA. Also, universities sometimes count money differently so the figures aren't necessarily a precise comparison.